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Support data rate and MCS #67

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Merged
merged 4 commits into from
Jun 1, 2024
Merged

Support data rate and MCS #67

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f0441f9
Support data rate and MCS
jychen0611 May 30, 2024
4bdc6b2
Fix typo
jychen0611 May 30, 2024
8ede813
Adjust coding style
jychen0611 May 30, 2024
dde3606
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jychen0611 May 31, 2024
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34 changes: 31 additions & 3 deletions vwifi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1219,7 +1219,9 @@ static int vwifi_get_station(struct wiphy *wiphy,
BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
BIT_ULL(NL80211_STA_INFO_SIGNAL) |
BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME);
BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
BIT_ULL(NL80211_STA_INFO_RX_BITRATE) |
BIT_ULL(NL80211_STA_INFO_TX_BITRATE);

if (vif->sme_state == SME_CONNECTED) {
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CONNECTED_TIME);
Expand All @@ -1245,8 +1247,34 @@ static int vwifi_get_station(struct wiphy *wiphy,
/* For CFG80211_SIGNAL_TYPE_MBM, value is expressed in dBm */
sinfo->signal = rand_int_smooth(-100, -30, jiffies);
sinfo->inactive_time = jiffies_to_msecs(jiffies - vif->active_time);
/* TODO: Emulate rate and mcs */

/*
* Using 802.11n (HT) as the PHY, configure as follows:
*
* Modulation: 64-QAM
* Data Bandwidth: 20MHz
* Number of Spatial Streams: 4
*
* According to the 802.11n (HT) modulation table, we have:
*
* Number of Data Subcarriers: 52
* Number of Coded Bits per Subcarrier per Stream: 6
* Coding: 5/6
* OFDM Symbol Duration: 3.2 µs
* Guard Interval Duration: 0.8 µs
* Thus, the data rate is 260 Mbps.
* MCS table, Data Rate Formula :
* https://semfionetworks.com/blog/mcs-table-updated-with-80211ax-data-rates/
* IEEE 802.11n : https://zh.wikipedia.org/zh-tw/IEEE_802.11n
*/
sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
sinfo->rxrate.mcs = 31;
sinfo->rxrate.bw = RATE_INFO_BW_20;
sinfo->rxrate.n_bonded_ch = 1;

sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
sinfo->txrate.mcs = 31;
sinfo->txrate.bw = RATE_INFO_BW_20;
sinfo->txrate.n_bonded_ch = 1;
return 0;
}

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